Unit 1- Density and Conversions

The chief advantage of the metric system over other systems of measurement is that it ____.

• has more units

• is in multiples of 10

• is in French

• is derived from nature itself

he density of mercury is 5,427 kg/(m3). If the density of water is 1.0 g/mL, will mercury float or sink in water?

• Mercury will float because the density of mercury is 0.005427 g/mL, which is less than the 1.0 g/mL density of water.

• Mercury will float because the density of mercury is 0.05427 g/mL, which is less than the 1.0 g/mL den

• Mercury will sink because the density of mercury is 5.427 g/mL, which is greater than the 1.0 g/mL density of water.

• Mercury will sink because the density of mercury is 5,427 g/mL, which is greater than the 1.0 g/mL density of water.

A train travels at a speed of 30 miles per hour. If 1 mile = 1.6 kilometers, how fast is the train traveling in kilometers per hour?

• 24 km/hr

• 36 km/hr

• 48 km/hr

• 60 km/hr

Density is found by dividing ____.

• mass by volume

• volume by mass

• mass by area

• area by mass

What is the density of an object having a mass of 8.0 g and a volume of 25 cm?

• 0.32 g/cm

• 2.0 g/cm

• 3.1 g/cm

• 200 g/cm

What is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL?

• 5.6 10

• 1.1 10

• 8.8 10

• 8.0 10

You drop a pencil into a garduated cylinder filled with 90 mL of water. The water rises to 108 mL. What is the volume of the pencil?

• 12 mL
• 20 mL
• 18 mL
• 198 mL

If copper floats on mercury, and gold sinks in mercury, then which one of the following statements is TRUE?

• Copper is less dense than gold.
• Mercury is the least dense of the three metals
• Copper is more dense than mercury
• Mercury is denser than gold

1 meter = _______ cm

• 1
• 1,000
• 100
• 400

Which unit is the smallest?  

• km
• mm
• m
• cm